Heater for gaseous fuel.



H. E. WHITING.

HEATER FOR GASEOUS FUEL.

APPLICATION FILED JULY 12,1912.

Patented July 7, 1914..

atten/nui HERMAN E. WRITING, OF PALMYRA., lNEIT YORK.

HEATER ,FR GASEOUS FUEL.

Specification of Letters Patent.

Patenten .muy '7, 1914.

Application filed July 12, 1912. Serial No. 708,984.

' Heaters for GaseousFuel', which improvement is fully set forth in thefollowing specification and shown in the accompanying drawings. 1

The present invention relates to heaters for gaseous fuel, that is, todevices for causing a gaseous fuel, in a partially unmixed state afterit passes from the carbureter or other source of supply, to be heated inorder to vaporize t globules, and an object of thisinvention 1s toprovide a simple and inexpensive construction in which the mixture iscaused -to take such a path that the unmixed particles or rglobules willvbe depositedv upon a heated surface which willeflect theirvaporization.

Another object of the invention is to provide a heater having provisionfor enriching the explosive mixture, the enriching material being fed insuch amanner that it commingles with thetexplosive mixture to give aneffective explosion.

To these and other ends the invention consists in certain parts andcombinations of parts all of which will be hereinafter described, thenovel features being pointed out in the appended claims.

In the drawings: Figurel is a side view of 'the heater connected to acarbureter; Fig. 2 is a vertical section through the fixer; Fig. 3 is adetail view of the two heating devices; and F ig. 4 is a top view of theparts shown in Fig. 3.

According to this invention, there is employed a lcasing, preferably,embodying three parts, indicated at 1, 2 and 3. The part 1 is contractedat 4 to provide an inlet 5 which is surrounded by a flange 6 adapted tobe bolted or otherwise secured to a flange 7 on the carbureter, thelatter being of any suitable construction, but, preferably, of the typewhich has an upwardly discharging nozzle past which air is drawn. Themember 2 is in the form of an open-ended cylinder, while the member 3 iscontracted at 9 and is provided with an outlet 10.

Arranged with the chamber, formed by the casin ,is a heating chamber 11which is preferab y formed by a ring-shaped casting or wall 12 havingoutwardly extending flanges 13 and le forming respectively the e unmixedparticles or,

top and the bottom of the heating chamber and Ybeing held within thecasingy of the heater by shoulders 15 and 16 on casing members 1 and 3engaging respectively the flanges 14 and 13. It will be seen that theheating chamber 11 has a wall in common' with the wall of the heatercasing while its inner wall provides a contracted ortion within thecasing. There may also e provided another heating device arrangedbetween the\inlet of the fixer casing and the contracted portion formedbythe annular or ring-shaped heating chambers 11. This second `heatingdevice is in the form of the kchamber 17 which has its sidewalls 18converging toward the inlet 5 and its top wall 19 convexed. Extendinfrom the top wall and connecting with t e annular heating chamber 11 arepassageways 202t spaced `apart to permit the fuel, after passing throughthe inlet 5 and being deflected toward the sidewalls of the casing bythe cone-shaped walls4 of the heating chamber 17, to pass above theheating chamber and through the restricted passageway. The convexwall 19prevents the accumulation ,of dust or the like.

The heating chambers 11 and 17 may be heated from hot Water or other hotfluid passing to the chamber 11 by way of the inlet pipe *20 and fromthe chamber 17 by way of outlet pipe 21. The filling cup 22 may beconnected to the inlet pipe 20 and controlled by a valve 23 for.supporting a heating fluid for heating the chambers 11 and 17 whenstarting the motor. Itis also desirable to employ an outlet pipe 24atthe bottom of the chamber 17 for the purpose of providing acirculation from the pipe 20through the chamber 17. A three-way -valve25 may be employed in the pi e 24 for the purpose of controlling thedisc arge through such pipe 24. A mixing screen 26 may be arrangedwithin the caslng of the fixer above t-he heating chamber 11, saidscreen being held by the flange 13 and the shoulder 16 on the member 3.

The invention may also embody a supplemental feed device for a gas to beused either for enriching the fuel or for starting purposes, as, forinstance, hydrogen, acetylene gas or oxygen. This is preferably fed tothe heater at a oint in the center of the same and near t e inlet. Inthis inst-ance, the cone-shaped hollow member 27 is de tachably engagedby screw threads 28 or sol,

3""ierwise With the bottom Wall of the heat cnanilcer l?, and the sideWalls of 'this conesnaped member forni continuaticns of the eide Walis18 oit the heating device, The anni: of this member 27 is provided Witha le 29 through which the enriching or rting or fuel is delivered to theheater, s nozzle discharging in the direction opnosite to the directionof the :dow ci the fuel through the tixer so that the fluid is therebyforced beck upon itself and against the coneel I ned device, thisnnpingement together n the simultaneous impingeinent. of the L)lesivefuel producing a mixture of the c which isy completed after the gespasses scugl'i'tlie annular heating chamber l1, ine feed pipe 8() mayconnectJ With the fnarnber E2? 'to supply tle starting or enrichduid endmay lead to any suitable source supply' and loe controlled in envsuitable iev vi starting tlie motor, heated Water or einer duid may 1necaused to travel from the cnc 22 to the discharging valve 25 tlirougrlithe chambers 1i and il?, thus heating tic ils of such chambers Anexplosive inizi ture, suoli, `for instance, as gasclene or acetylene gasmay be directed to the neeter cm ing by Way ci feed pipe 30 and nozzle29, messing from die nozzle in contect with the ,ieeted walls to tliecy'iinder. Liter the inostarted, 'the chambers il end i? are, bv 20 2l,piaced in connectionwith c Water jackets of the inotor and, in this nay,:die Walls of these chambers ere kept The explosive mixture, passingeinigtA tlie iniet 5, first laits the cone-shaped device centrallyarranged Wit-nin tile nner 1 Ffm l easing.

EQS

fne Walle. or' this device, being iicated, dit the mixture and, at thesance time, deflect the saine against the bottoni Wali ci annniarheating chamber il, eiter Wliicli the mixture pass-es through 'thereduced opening in the annular chamber, tens leeconiing afectivelyfined, The inizture niej; ne enricned or inodiiied by the introductionany snitaleie duid through the nozzle Q9 this enricn'ng iiuid iseffective" mined reason oi the circuiteiis passage through which themixture is caused to travei.

eat claim as my invention enddesire to secure by Letters Patent isziheater for gaseous uei coinlorising casing, an ennniar heating devicewithin] unen f A l n; 'Leve "l1 71 Q n. Alca'. toi. iKC-i easing,annnlarc;

. pass tnrcu'; fi

ipicaeee duid, arranged Within said casing and liev- L ing va centralpessagevvajyv for the fuel, end a cone-shaped heating chamber arrangedcentrally With reference te the annular heating chamber with its apexlocated' to be engaged first by the incoming fuel which is tlien spreadover 'the flaring walls ci. the conesliaped chamber and directed by thelatter v*against the Walls of the annular heating chamber.

.3, A heater for gaseous 'fuel comprising a casing, an annular chamberfor a heating duid, arranged Within said casing and naving a centralpassageway for the fuel, and a cone-shaped heating chamber arrangedcentrally with reference tcv the annular neating chamber with its apexiocated to be engaged irst by the incoming fuel which is then spreadover the daring Walls ci the cone-shaped cliamlcer and directed by theiatter against the Walls of tile annuiar heating chamber, tlie Wall cisaid cone-slianed cliainloer in proximity to the heating` device beingconvex7 se that ine particles wili not collect upon the heating device,and a dead space will not be provided above tlie seid heating device,

4t. A 'heater for gaseous fuel comprising a casing having a restrictedinlet, a cone* shaped spreading device having its apen di rected towardthe inlet arranged centrally with reference 'to said. inlet, the bese ofsaid cone-shaped spreading device being; greater in diameter than theinlet, and lisating means on which the inel is directed ny thecone-shaped spreading device.

5. in a heater for gaseous fuel, the ceinbination with casing embodyingthree parts., one et which nas an inlet, another of which has an outlet,and 'the other of which is an open-ended member, of a tubular ineincerhaving outwardly-extending flanges opposite ends cooperating Witli theopenended member toprovide an annular neat ing device vIitl/iin thecasing,

ln a heater :tor gaseous reel, the cernliination with e casing having areduced iniet a reduced disch Jg ci? an anneiar 1neating chamber bevi awail in corne .nien with casing and erming e redrced passageway in 'diecasing, und spree g device arranged centraliy Within the casing betweenthe iniet and the rr lnced passage to canse 'the euel nassing inte iecasing; te iinpinge suoli spi-reading device and 'tc be rected againstthe Weiis ci the annnlar cnanilier, passageeaybeing provided about thespreadin device to jperinit tlie fr 'tc the l heating device0 7, ln a ii ene class described, the coin `J-nation e i @ving a i'nei inlet andarranged nu direct the fuel on the heating device, and a nozzle arrangedto discharge into the c'aslng between the fuel inlet and the spreadingdevice so as to cause a fluid from the nozzle to pass over the spreadindevice.

8. In a device of the ciss described, the combination with a casinghaving an inlet, of a cone-shaped heating device arranged Within thecasing and having its apex located to be engaged first by the incomingfuel which is then spread over the walls of the cone-shaped heatingdevice, and a nozzle arranged at the apex of the cone to dischargetoward the inlet' of the casin so that the fluid issuing from the nozz eis caused to return upon itself and spread over the Wallsof thecone-shaped heating device. 9. In a device of the class described, the

combinationwith a casing, having an inlet and an outlet, and an annularheating device arranged therein and having a central assage for themixture, 'of a cone-shaped evice arran ed centrally with reference tothe annular eating device and having its apex directedtoward theincoming mixture, and\ a nozzle arranged at the apex of the cone-shapeddevice 97nd directing a fluid toward the incoming-mxture so that suchiuid is returned upon itself and spread overV the walls of thecone-shaped device to be directed by the latter ontothe annular heatingdevice.

HERMAN E. WHITING. Witnesses:

HAROLD H. SIMMs, ADA M. WHITMORE.

